ELECTROMYOGRAM OF THE EXTERNAL VESICAL SP HINCTER - METHOD, INDICATION AND RESULTS

Electrophysiological examinations provide important findings for the c larification of urogenital dysfunctions. A routine electromyogram (EMG ) of the external anal sphincter is used together with stimulation of the pudendal nerve to determine lesions of the somatomotor tract. An a lternative is the electromyographical examination of the external vesi cal sphincter. This special method requires more time and sufficient e xperience. We see an indication for EMG of the voluntary vesical sphin cter in urogenital dysfunctions that cannot be sufficiently differenti ated with EMG of the external anal sphincter and also in disturbances that selectively affect the external vesical sphincter.